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4. (12 pts) Furoic acid (HCsH303) has a Ka value of 6.76x10-4 at 25°C. Calculate the pH at 25°C of a solution prepared by adding 25.0 mL of 1.70 M NaOH solution to 0.500 L of0.0850 M HCsH303. Hint: This is at the equivalence point in a titration.

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